package cn.tedu.jbdc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class JDBCDemo2 {
    public static void main(String[] args) throws SQLException, ClassNotFoundException {
        Class.forName("com.mysql.cj.jdbc.Driver");

        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );

        Statement statement = connection.createStatement();

        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入用户名:");
        String username = scanner.nextLine();
        System.out.println("请输入新密码:");
        String password = scanner.nextLine();

        String sql = "UPDATE userinfo SET password='"+password+"' WHERE username='"+username+"'";

        int i = statement.executeUpdate(sql);
        if (i==0){
            System.out.println("修改失败");
        }else {
            System.out.println("修改成功");
        }

        connection.close();
        statement.close();



    }
}
